Hand valve-grinder



C. E. TIDEMAN.

, HAND VALVE GRINDER. I APPLICATION FILED JULY 17, 191B.

1,3U6592, Patented 11111017, 1919. 2 SHEETS-SHEET 1.

c. E. TIDEMAN.

HAND VALVE GRINDER.

APPLICATION FILED JULY 11, 19:8.

1,306,93& Patented June 17, 1919.

2 SHEETS-SHEET 2.

awue/wtoz mm 5.7mm

w V weave/115:

CARL E. TIDEMAN, WORCESTER, MASSACHUSETTS, ASSIGNOB OF ONE-HALF TO VERNER Gr. ANDERSON, 0F WORCESTER, MASSACHUSETTS.

HAND VALVE-GRINDER.

Specification of Letters Patent.

Patented Julie 17, 1919.

Application filed July 17, 1918. Serial No. 245,326.

To all whom it may concern:

Be it known that I, CARL E. TIDEMAN, a citizen of the United States, residing at lVorcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Hand Valve-Grinders, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to a hand valve grinder. The object of the invention is the construction of a simple and efficient device or machine that can be constructed at a minimum expense and which will be compact in structure and can be readily transported.

With this and other objects in view my invention comprises certain novel constructions and combinationsof parts as will be clearly illustrated in the accompanying drawings, specifically described in the following specification and more particularly pointed out in the appended claims.

In the drawings: 1

Figure 1 is a vertical sectional viewof a device constructed in accordance with the present invention, while Fig. 2 is a sectional view taken on line 2-2 of Fig. 1, and looking in the direction of the arrows.

Fig. 3 is a horizontal sectional view taken on line 3-3 of Fig. 1, and looking in the direction of the arrows.

Fig. 4 is a horizontal sectional view taken on line 4-4 of Fig. 2, and looking in the direction of the arrows.

Fig. 5 is a perspective view of the crank sleeve.' ,7 Fig. 6 is a perspective view of the cap plate and showing the pivoted bifurcated member carried thereby.

Fig. 7 is a perspective view of the auxiliary link.

Referrino to the drawing by numerals, 1 designates the casing, and 2 the cap of my device or machine. The cap 2 is provided with a suitable handle 3, and in the cap, and formed in alinement with each other, are journals 4 and 5. The journal 4 is comparatively long, and supports one end of a manually-driven shaft 6, the other end of the shaft 6 extending through the journal or bearing 5, and is connected to the crank arm 7, which arm is provided with a grip 8. Securely fastened to the driven shaft 6, is a primary gear 9. The shaft 6 is prevented from moving outwardly from within the ournal bearing 4, by means of the locking collar 10.

While the cap 2 is provided with the primary journal or bearing 4, the casing 1 is provided with the lower or auxiliary bearing 11 and the intermediate hearing or journal 12. An auxiliary gear 13, provided with an integral shaft 14, is supported upon the intermediate bearing 12, and a suliicient amount of frictional resistance is exerted, through the medium of set screw 15 to keep the shaft 14 in a satisfactory working position upon the bearing 12.

A disk 15 is integral with the outer end of the auxiliary gear 13, and this disk carries a pin 16, on which pin is mounted the primary link 17, and the outer or lower end of link 17 is mounted on the auxiliary pin 18, which pin 18 is attached to the lower end of arm 19. The arm 19 is integral with the outer end of crank sleeve 20, which sleeve is journaled upon the shaft 21, carried by the lower or auxiliary bearing 11. Depending from and integral with the crank sleeve 20 is a sleeve 22, and in the lower end of sleeve 22 is positioned the pin 23, which pin 23 is integral with the bifurcated primary cap 24. An auxiliary bifurcated cap 25 is pivotally mounted through the medium of the rivetlike member 26, upon the cap plate 27, which plate 27 is fastened to the upper end of the valve-tool carrying shaft 28.

Pivotally mounted, at 29, upon the shaft 28, is the valve tool 30, adapted to engage the valve 31, as shown in Fig. 1.

The primary and auxiliary bifurcated caps 24 and 25 are connected by means of an auxiliary link 32, which link has its apertured ends registering with the apertures in' the caps 24 and 25, and through the registering apertures are passed the fastening rivets or members 33, Fig. 1.

The operation of the device is as follows: Rotary motion is imparted to the primary gear 9, through the medium of the crank 7 and shaft 6, and thence rotary movement is imparted to the auxiliary gear 13', causing the primary link 17 to be raised and lowered and resulting in an oscillatory movement of the arm 19, of the crank sleeve 20, which in turn oscillates or swings back and forth the depending sleeve 22 of crank sleeve 20, as clearly lndicated by the dotted lines in Fig. 2. This oscillation or swingingof the crank sleeve and its integral members results in a partial rotation of the valvetool carrying shaft 28, which in turn imparts a partial rotary movement to the valve 31, being worked upon, thereby enabling the operator to manually grind the valve in a very eflicient manner, by the use of a device constructed in accordance with the present invention.

What I claim is:

l. A valve grinder comprising a casing provided with a cap, a manually driven primary gear carried by said cap, said casing provided with bearings, an auxiliary gear meshing with the primary gear and supported upon one of the bearings in the easing, a crank sleeve positioned contiguous to the other bearing, means. supporting said crank sleeve upon said last-mentioned bearing, said crank sleeve provided with an arm and an integral depending portion, means connecting the arm of the crank sleeve with the auxiliary gear, a tool-carrying shaft j ournaled upon said casing, and means connecting the integral depending portion of the crank sleeve and the tool-carrying shaft.

2. A valve grinder comprising a casing, a

tool-carrying shaft journaledupon said casing, a plate secured to the upper or inner end of said shaft, a bifurcated cap pivotally mounted on said plate, another bifurcated cap contiguous to said first-mentioned cap, means pivotally connecting said caps, a crank sleeve provided with an extension c0- operating with one of said bifurcated caps, means pivotally mounting said crank sleeve upon said casing, and means for imparting a swlng ng or oscillatory movement to said crank sleeve for impartingarotary motion to said valve c'arrying shaft.

3. A valve grinding device comprising a casing, a valve-carrying shaft extending through one end of said casing, a cap plate secured to the inner end of said shaft, a bifurcatedcap provided with means extending through said plate and pivotally securing said cap thereto, a crank sleeve provided with an integral arm and with an integral depending, sleeve, a bifurcated :cap provided with a pin extension, the pin extension extending into the depending sleeve of the crank sleeve, a linlobetween said-caps, means pivotallyconnecting the ends of said link to said caps, and means connected to the arm of said crank sleeve :and being adapted toimpart a swinging or'oscillatory movement to the arm-*for-actuating the crank sleeve and the tool-carrying shaft.

4:. A :va-lve grinder comprising a casing and a cap, said-cap provided with a pair of alined bearings, one of. said bearings substantially onehalf the width of the cap, a shaft. extending through said bearings, a primary gear secured tosaid shaft against said last-mentioned bearing, a valve-tool carrying shaft carriedby said casing, and

means connected to said shaft and said primary gearfor driving said shaft when said primary gear is'rotated.

In testlmony whereof I hereunto afiiX my signature.

CARL. E, TIDEMAN.

Copies 0! this patent may be obtained for five cents each, by addressing. the Commissioner of Patents, Washington, D. G. 

